Finding the Fourth Proportional to 74,266.02, 102,487.12 and 40,274.49
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Solution
The fourth proportional to 74,266.02, 102,487.12 and 40,274.49 is: 55,578.80
Step by Step Solution
- Step 1: Write the proportion equation
74,266.02 : 102,487.12 = 40,274.49 : x - Step 2: Convert to fraction form
74,266.02/102,487.12 = 40,274.49/x - Step 3: Cross multiply
74,266.02x = 102,487.12 × 40,274.49 - Step 4: Simplify right side
74,266.02x = 4,127,616,489.57 - Step 5: Solve for x
x = 4,127,616,489.57/74,266.02 - Step 6: Final answer
x = 55,578.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.